so,
For mission 3 I managed to finish it without problems once the wingman managed to take off. I noticed that if you start and take off really quickly, the winger doesn't return to the ground and can then follow me.
But, (and I think it's the same for all missions starting at Otkrytka FARP) I have this problem again during mission 7, and in addition, on the first try I arrived a few minutes early at the meeting point so I waited until 10:30 at WP3.
I had the radio exchange with the MI-8 where he said: "approaching the meeting point", then nothing! the helicopter never came, forced to stop the mission... On the second try, I took my time to start and arrive at the exact time, but the wingman did his trick of returning to the ground again and shut off the engines.
So I have the following problem: if I start quickly because of the wingman I arrive early and nothing happens at WP3, but if I wait the wingman does anything. I have to say that this campaign is getting annoying with all these problems. I was about to buy Pandemic campaign, but I don't really want to anymore when I see the problems of Border prequel...
Did you test it with beta testers before publishing it? because there, honestly, I have the impression of playing an alpha version. For the price I think there shouldn't be such big problems.